NASA-LLIS-2737
Lessons Learned - Launch Processing System - Unprocessed Data Recording
active, Most Current
| Organization: | NASA |
| Publication Date: | 26 April 2010 |
| Status: | active |
| Page Count: | 2 |
scope:
Abstract:
While radio frequency (RF) Shuttle Main Engine telemetry data was being recorded during the vehicle ascent phase of STS-123, off-nominal noise in the data stream, combined with the use of a predefined and preset pulse code modulation (PCM) bit synchronizer, invalidated some of the Shuttle Main Engine data. Investigations revealed a deficiency in the telemetry station recording process, which was subsequently resolved by changing the RF data recording format from digital to analog.
Document History
NASA-LLIS-2737
April 26, 2010
Lessons Learned - Launch Processing System - Unprocessed Data Recording
Abstract:
While radio frequency (RF) Shuttle Main Engine telemetry data was being recorded during the vehicle ascent phase of STS-123, off-nominal noise in the data stream, combined with the use of...
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